Home / 79,231,341.70-118,847,012.55-54,572,479.30

Finding the Fourth Proportional to 79,231,341.70, 118,847,012.55 and 54,572,479.30

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Solution

The fourth proportional to 79,231,341.70, 118,847,012.55 and 54,572,479.30 is: 81,858,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,231,341.70 : 118,847,012.55 = 54,572,479.30 : x
  2. Step 2: Convert to fraction form
    79,231,341.70/118,847,012.55 = 54,572,479.30/x
  3. Step 3: Cross multiply
    79,231,341.70x = 118,847,012.55 × 54,572,479.30
  4. Step 4: Simplify right side
    79,231,341.70x = 6,485,776,132,251,715
  5. Step 5: Solve for x
    x = 6,485,776,132,251,715/79,231,341.70
  6. Step 6: Final answer
    x = 81,858,718.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.